String Field Equations From Generalized Sigma Model II
High Energy Physics - Theory
2009-10-30 v2
Abstract
We improve and extend a method introduced in an earlier paper for deriving string field equations. The idea is to impose conformal invariance on a generalized sigma model, using a background field method that ensures covariance under very general non-local coordinate transformations. The method is used to derive the free string equations, as well as the interacting equations for the graviton-dilaton system. The full interacting string equations derived by this method should be manifestly background independent.
Cite
@article{arxiv.hep-th/9710249,
title = {String Field Equations From Generalized Sigma Model II},
author = {Korkut Bardakci},
journal= {arXiv preprint arXiv:hep-th/9710249},
year = {2009}
}
Comments
39 pages (latex, no other macros needed). Two references missing in the earlier version have been added; there are no other changes